13F-HR filed by MAD RIVER INVESTORS
MAD RIVER INVESTORS filed this 13F-HR for the quarter ended 2026-06-30, filed 2026-08-03, with 30 holding rows worth $268,105,784.
- Accession
- 0001384484-26-000006
- Filer
- CIK 1384484
- Filed
- 2026-08-03
- Accepted by EDGAR
- acceptance time not in the bulk data set
- Ingested
- Source
- SEC quarterly data set
13F report for Q2 2026
A holdings report, 30 entries on the cover page, a total value of $268,105,784 stated on the cover page (in dollars after the unit check, H1), rows summing to $268,105,784 with VALUE read as dollars as filed, 13F file number 028-12322. The quarter's positions are built on this report. The resolved quarter.
The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).
| Issuer as filed | CUSIP | Class | Amount | Value | Value read as | Type |
|---|---|---|---|---|---|---|
| TEXAS PACIFIC LAND CORPORATION COM | 88262P102 | Stock | 285,330 | $124,871,767 | dollars as filed | |
| PERMIAN BASIN RTY TR | 714236106 | UNIT BEN INT | 1,005,152 | $25,169,016 | dollars as filed | |
| LANDBRIDGE COMPANY LLC | 514952100 | CL A | 267,953 | $21,232,603 | dollars as filed | |
| HAWAIIAN ELEC INDS INC MTN B | 419870100 | COM | 1,321,850 | $17,884,631 | dollars as filed | |
| GRAYSCALE BITCOIN TRUST ETF | 389637109 | SHS REP COM UT | 360,139 | $16,393,528 | dollars as filed | |
| MIAMI INTL HLDGS INC COM | 59356Q108 | Stock | 289,000 | $10,739,240 | dollars as filed | |
| WATERBRIDGE INFRASTRUCTURE L | 940923105 | CL A SHS REPSTG | 267,801 | $9,177,525 | dollars as filed | |
| MESABI TR | 590672101 | CTF BEN INT | 323,735 | $8,190,493 | dollars as filed | |
| WHEATON PRECIOUS METALS CORP COM | 962879102 | Stock | 56,173 | $6,309,356 | dollars as filed | |
| FRANCO NEV CORP COM | 351858105 | Stock | 22,506 | $4,691,175 | dollars as filed | |
| Fidelity Wise Origin Bitcoin Fund | 315948109 | SHS | 70,369 | $3,592,314 | dollars as filed | |
| CARNIVAL CORP LTD COMMON SHARES | G2004J103 | Stock | 95,373 | $2,724,801 | dollars as filed | |
| VTI | 922908769 | COM | 6,800 | $2,516,272 | dollars as filed | |
| GRAYSCALE BITCOIN MINI TR ET | 389930207 | SHS NEW | 81,517 | $2,115,367 | dollars as filed | |
| PALO ALTO NETWORKS INC | 697435105 | COM | 5,484 | $1,870,154 | dollars as filed | |
| CBOE GLOBAL MKTS INC COM | 12503M108 | Stock | 6,705 | $1,627,019 | dollars as filed | |
| Apple Inc | 037833100 | COM | 5,050 | $1,461,268 | dollars as filed | |
| Oracle Corporation | 68389X105 | COM | 8,050 | $1,179,728 | dollars as filed | |
| Intercontinental Exchange,Inc. | 45866F104 | COM | 7,846 | $965,876 | dollars as filed | |
| Amazon.com, Inc | 023135106 | COM | 3,400 | $810,356 | dollars as filed | |
| UnitedHealth Group Inc | 91324P102 | COM | 1,700 | $706,571 | dollars as filed | |
| Cisco Systems,Inc. | 17275R102 | COM | 6,000 | $704,760 | dollars as filed | |
| CINCINNATI FINL CORP COM | 172062101 | Stock | 3,600 | $666,504 | dollars as filed | |
| HAWAIIAN ELEC INDS INC MTN B | 419870100 | COM | 48,800 | $660,264 | dollars as filed | call |
| Eaton Corp. Plc | G29183103 | COM | 1,200 | $511,344 | dollars as filed | |
| RLI CORP COM | 749607107 | Stock | 6,000 | $354,420 | dollars as filed | |
| Berkshire Hathaway Inc | 084670702 | COM | 625 | $312,744 | dollars as filed | |
| Johnson & Johnson | 478160104 | COM | 1,200 | $304,764 | dollars as filed | |
| CACI INTL INC CL A | 127190304 | Stock | 455 | $210,784 | dollars as filed | |
| FERMI INC | 314911108 | COM | 16,500 | $151,140 | dollars as filed |
Amendment chain
| Filing | Role | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-HR 0001384484-26-000006 | this filing | 2026-08-03 | acceptance time not in the bulk data set |